Piston Rings

Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.040 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045045

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Piston Rings, Performance Series, 4.040 in. Bore, File Fit, 1.5mm, 1.5mm, 3.0mm, 8-Cylinder, Set

Part Number: MLE-4045MS-15

5.0 out of 5 stars ( 1 )

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Piston Rings, Moly, 4.040 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-921K40

5.0 out of 5 stars ( 1 )

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP404043

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Piston Rings, Stainless Steel Series Performance, Gas Nitrided, 4.040 in. Bore, 1.2mm, 1.2mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-SN9045040

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP404012

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Piston Rings, Steel Series Performance, Plasma-moly, 4.040 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-SM8565040

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Piston Rings, Plasma-moly, 4.040 in. Bore, 0.043 in., 0.043 in., 3.0 mm, Thickness, 8-Cylinder, Set

Part Number: JEP-J71408-40405

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Piston Rings, Steel, 4.045 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: TSR-CS2010-45

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Piston Rings, Performance Series, 4.040 in. Bore, File Fit, 1.5mm, 1.5mm, 3.0mm, Single Piston, Set

Part Number: MLE-4045MS-15-1

5.0 out of 5 stars ( 4 )

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Piston Rings, Performance, 4.040 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 3.0mm, 8-Cylinder, 8 Sets

Part Number: MLE-4040MS-15D

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Estimated Ship Date: Feb 2, 2026 if ordered today

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.043-.043-3.0

Part Number: JEP-J714F8-40405

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.040 in. Bore, File Fit, 1.2mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150064045

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in., 1/16 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150049040

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Estimated Ship Date: Feb 16, 2026 if ordered today

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4.040+5 1.2 1.2 3.0 8CYL

Part Number: TSR-MSH470845

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4.040 1.5 1.5 3.0 8CYL

Part Number: TSR-CRH201040

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Estimated Ship Date: Jan 26, 2026 if ordered today

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RING SET .043-.043-3m-102.743

Part Number: JEP-J7140140405

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.040 in. Bore, 1.2 mm, 1.0 mm, 3.0 mm Thickness, Single Cylinder, Set

Part Number: JEP-J91501-40405

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Estimated Ship Date: Feb 3, 2026 if ordered today

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1.2-1.2-3mm MOLY

Part Number: JEP-J92601-40405

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Ring Set , 1.2-.043-3mm MOLY - RING SET

Part Number: JEP-J9410140405

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Estimated Ship Date: Feb 3, 2026 if ordered today

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RING-4.040 .043, 3mm

Part Number: MAN-46224-8

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.040 in. Bore, File Fit, 0.043 in., 0.043 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150059045

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Estimated Ship Date: Feb 16, 2026 if ordered today

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RING-4.040 .043,3mm GL TOP

Part Number: MAN-46214GT-8

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.040 in. Bore, File Fit, 1/16 in., 1/16 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150049045

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Estimated Ship Date: Feb 16, 2026 if ordered today

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